| Author | Message | ||
     Nick A. (Nick) New Member Username: Nick Post Number: 35 Registered: 03-2003 |
I have a stock D1 with 235/70/16 Yoko A/T ,according to LR tire pressure should be 26 front and 36 rear . Is there a reason for that much of a difference and what do you all run,thanks. | ||
| Alan Yim (Alan) Senior Member Username: Alan Post Number: 913 Registered: 09-2002 |
Nick, Discos carry a lot of their weight in the rear hence the higher pressure on the rear wheels. I run BFG ATs and run 30 front 40 rear for daily driving but pressures may vary from manufacturer to manufacturer so you may have to test around with the pressures but I would suggest you stagger them that way to account for the weight distribution. I know some folks here run the same pressure all the way around and that seems to be more of a personal preference. If you want a good idea of what pressures to run on your Yoko's, you can try the chalk test. Hope that helps. | ||
| Gabriel Guay (Gearhead) Member Username: Gearhead Post Number: 58 Registered: 04-2002 |
My truck is unloaded 99% of the time and with the added Winch and bumper on the front the weight is very cloes front to rear so I run 40 PSI front & Rear. Have been doing so since it was new in 99 and have seen two sets of tires and 120K miles all on 245/75/16. What I did to deterimine correct tire preasure for the non stock size: inflate to 55 PSI and chalk the tread and drive a few feet. See where the chalk has wiped away, (should be mostly in the center of tread at 55 PSI) and deflate 5 PSI at a time untill the chalk wipes away just 1/16" from the outer most edge of the tread. That determines a good starting point. Note preasure and go for a good 20 minute run at higway speeds and stop at an exit and check tire by hand for a warm tread. An under inflated tire will be very warm. The tire should feel no warmer than 80 degress or so. For fully loaded conditions, (like on a road trip with camping gear, and recovery gear ) I run 40 front & 48 rear to get same wear pattern on chalk. Once off road, I airdown to 26 frt-30 rear and 20 frt & rear for the beach. that should give you an idea how to get started. GG | ||
| Riley Troy (Freeplay) New Member Username: Freeplay Post Number: 5 Registered: 11-2003 |
What should the psi be in mud? | ||
| Gabriel Guay (Gearhead) Member Username: Gearhead Post Number: 60 Registered: 04-2002 |
I normally run 20&20 in deep mud but it really depends on the how soupy and how deep. I ran 40-40 in Ohio in the rain and they just would not get a good grip at 40 PSI. It wasn't deep goo to get stuck in and was kinda fun to spin around a bit so I left it at 40 but it felt like I was on street tires. GG | ||
| Geoff 93 RRC (Geoff) Member Username: Geoff Post Number: 170 Registered: 11-2002 |
The difference in air pressures is load *and* handling related. The front end gets a bit sloppier with a lower pressure tire - makes the car more stable on the highway and less oversteer/rollover risk. My Rangie is a handful without the correct pressures. Very twitchy requiring constant correction. | ||
| Shawn McKenzie (Shawn) Member Username: Shawn Post Number: 140 Registered: 10-2002 |
I just went from 245/75-16 BFG AT's to 265/75-16's in the same tire. With the larger diameter and 20mm wider footprint which way should I go with pressure? I was running 32fr 38rear before. | ||
| Milan (Milan) Senior Member Username: Milan Post Number: 309 Registered: 10-2002 |
Hey Shawn, What tires did you end up with? | ||
| Shawn McKenzie (Shawn) Member Username: Shawn Post Number: 141 Registered: 10-2002 |
Milan, I ended up with four 265/75-16 BFG AT KO's. I used my evil powers of persuasion to get them installed and balanced for $475CDN incl tax. This is definitely my Christmas present, as tires were not planned until next year. Cheers, Shawn | ||
| Alan Yim (Alan) Senior Member Username: Alan Post Number: 934 Registered: 09-2002 |
Holy crap! How did you manage that Shawn?? | ||
| Shawn McKenzie (Shawn) Member Username: Shawn Post Number: 149 Registered: 10-2002 |
Wheeling incident caused me to have ice inside the tires. Went to Canadian Tire to get them cleaned out and reseated, they destroyed one tire in process. So one freebie tire. Their cost minus ~25% for another three and free mount/balance = $475 all in. Alan, if Milan ever invites you out for a "scenic day of winter wheeling, nothing hardcore" prepare for an adventure.   | ||
| Alan Yim (Alan) Senior Member Username: Alan Post Number: 944 Registered: 09-2002 |
Hmmm, that's two people now that have said something like that to me. First Kevin, now you. Is there something I should know Milan?? | ||
| Milan (Milan) Senior Member Username: Milan Post Number: 310 Registered: 10-2002 |
The powers are against me. It's just some unseen force that makes things go from good to bad to worse on the "easy" runs, making these more memorable than most. Nothing to do with me. These runs provide learning experiences though, so we always have a chuckle about them. We still have a guy who managed to tear 2 10ply GY MT/Rs in the space of 1/2 hour - in the winter cold, late at night, while lost on the trail and of course after I have been telling him that he has one of the "toughest" LT tires made. I have the other tires and the 2 replacements on my Disco now. He has some stinky BFG ATs. LOL. Go figure. | ||
| Wei Quek (Apohis) New Member Username: Apohis Post Number: 23 Registered: 04-2003 |
Tear 2 MT/R's? How did he do that? BTW, Milan, what pressure are you running on yours? | ||
| Kevin Novakowski (Kln) New Member Username: Kln Post Number: 40 Registered: 02-2002 |
Milan: The powers are against me. Didn't you eat liver for breakfast a couple of weeks before the "incident"? Milan: It's just some unseen force that makes things go from good to bad to worse on the "easy" runs, making these more memorable than most. You bet. Shortest wheeling trip I every had (<500 meters), but a great day overall. Alan: Is there something I should know Milan?? My first trip with Milan ended up with us having to traverse Johnson Bog on the way out. LOL. There's never a dull moment and it sure beats the pansy-assed stuff I was doing before I met Milan and his friends. Wei: I've run my GY MT/Rs (245/75-r16) at 11 psi all around - Milan's suggestion to get me up a tough/tight hill - worked like a charm - I ran them at that pressure for a day and a half with no problems. Pay attention to wheel spin and obsticals at that pressure. When offroad I start with 18(F) and 26(R). Onroad I run 28(F) and 36(R). Milan - Thanks for practicing with the potting compound. I'm still laughing when I think of what your face must have looked like when you realized what was going on! | ||
| Milan (Milan) Senior Member Username: Milan Post Number: 311 Registered: 10-2002 |
Wei, the guy aired down low and by fluke he must have lost air in them and then got "snake bite" in one of them. The other he must have torn on a sharp rock (probably also after loosing air). I run 36psi frt and 44 rr on-road with 245-75/R16 MT/Rs. I used to run 12 in the stock 235-70 tires off-road and I have not had the new tires out yet but 11psi in Kevin's seems to work very well. Kevin, Now that it's over, I'd like to see that look on my face also. | ||
| Wei Quek (Apohis) New Member Username: Apohis Post Number: 24 Registered: 04-2003 |
Thanks, guys, I will try those pressures! I was running too much air previously (poor advice from tire shop). =( Milan: So when is the next "easy trip"? | ||
| Milan (Milan) Senior Member Username: Milan Post Number: 313 Registered: 10-2002 |
Probably between Christmas and New Year. All our runs are easy. Some are just easier than others. Hehehehe.. |
